Increasing Imaging Resolution by Non-Regular Sampling and Joint Sparse Deconvolution and Extrapolation

Seiler J, Jonscher M, Ussmueller T, Kaup A (2018)

Publication Type: Journal article

Publication year: 2018

Journal

IEEE Transactions on Circuits and Systems For Video Technology Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 29

Pages Range: 308-322

Journal Issue: 2

URI: https://arxiv.org/abs/2204.12867

DOI: 10.1109/TCSVT.2018.2796725

Abstract

Increasing the resolution of image sensors has been a never ending struggle since many years. In this paper, we propose a novel image sensor layout which allows for the acquisition of images at a higher resolution and improved quality. For this, the image sensor makes use of non-regular sampling which reduces the impact of aliasing. Therewith, it allows for capturing details which would not be possible with state-ofthe-art sensors of the same number of pixels. The non-regular sampling is achieved by rotating prototype pixel cells in a nonregular fashion. As not the whole area of the pixel cell is sensitive to light, a non-regular spatial integration of the incident light is obtained. Based on the sensor output data, a high-resolution image can be reconstructed by performing a deconvolution with respect to the integration area and an extrapolation of the information to the insensitive regions of the pixels. To solve this challenging task, we introduce a novel joint sparse deconvolution and extrapolation algorithm. The union of non-regular sampling and the proposed reconstruction allows for achieving a higher resolution and therewith an improved imaging quality.

Authors with CRIS profile

Jürgen Seiler Lehrstuhl für Multimediakommunikation und Signalverarbeitung (LMS) Markus Jonscher Lehrstuhl für Multimediakommunikation und Signalverarbeitung (LMS) Andre Kaup Lehrstuhl für Multimediakommunikation und Signalverarbeitung (LMS)

Involved external institutions

Leopold-Franzens-Universität Innsbruck / University of Innsbruck AT Austria (AT)

How to cite

APA:

Seiler, J., Jonscher, M., Ussmueller, T., & Kaup, A. (2018). Increasing Imaging Resolution by Non-Regular Sampling and Joint Sparse Deconvolution and Extrapolation. IEEE Transactions on Circuits and Systems For Video Technology, 29(2), 308-322. https://doi.org/10.1109/TCSVT.2018.2796725

MLA:

Seiler, Jürgen, et al. "Increasing Imaging Resolution by Non-Regular Sampling and Joint Sparse Deconvolution and Extrapolation." IEEE Transactions on Circuits and Systems For Video Technology 29.2 (2018): 308-322.

BibTeX: Download